Addison (TX) Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very hot to moderate in Addison. Typically, average maximum daytime temperatures range from a very hot 36°C (97°F) in August to a moderate 13°C (55°F) in the coolest month, January.

Nights vary from 25°C (77°F) in August to around 2°C (36°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Addison has a moderate amount of precipitation, averaging 993 mm (39 in) of rain/snowfall annually. The climate in Addison shows significant variation throughout the year. Expect high rainfall in May, the wettest month, with an average of 140 mm (5.5 in) of precipitation over 11 rainy days.

In contrast, the driest month August offers drier and sunnier days, with around 51 mm (2 in) of rainfall over 7 rainy days. For more details, please visit our Addison Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Addison serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.1 hours of sunshine daily, and embrace the darker days in December, offering only 5.8 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Addison.

The city experiences its highest humidity in May, reaching 70%. In July, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year